Does it work phone to phone? I was under the impression that a backup restore was needed if you wanted previous messages. It’s really an unnecessary security risk to have previous message sync. Someone gets your phone in their hand for 20 seconds, links your device and they get every message you have ever sent? No bueno.
Usually when hotels close past a certain time you can use a secondary entrance with your keys/card or at most call. Most hotels have a desk open 24h so this doesn’t even apply.
Also, I really don’t think Italians are generally rude. People are friendly, but also loud and warm, which often can be misunderstood. Assholes exist, obviously.